Investments in Equity Securities (Summary of Investments) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Investments [Line Items]
Investments	$ 9,559	$ 9,600
ABI [Member]
Investments [Line Items]
ABI	9,211	8,975
JUUL [Member]
Investments [Line Items]
JUUL	0	250
Cronos [Member]
Investments [Line Items]
Cronos	$ 348	$ 375

Equity Method Investments, Including Fixed-Price Preemptive Rights

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- Definition

[Line Items] for Investments [Table]

+ References

No definition available.

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

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